Transcript 1 - Revsworld

Chemistry, The Central Science, 11th edition
Theodore L. Brown, H. Eugene LeMay, Jr.,
Bruce E. Bursten,
and Catherine J. Murphy
Chapter 8
Basic Concepts of Chemical Bonding
Dana & Michelle Chatellier
University of Delaware
© Copyright 2009, Pearson Education
The two types of chemical
bonds commonly found in
compounds are:
a.
b.
c.
d.
doric and covalent.
ionic and electrolytic.
ionic and covalent.
electrolytic and compound.
The two types of chemical
bonds commonly found in
compounds are:
a.
b.
c.
d.
doric and covalent.
ionic and electrolytic.
ionic and covalent.
electrolytic and compound.
The electrons used by atoms to
form chemical bonds are the:
a.
b.
c.
d.
core electrons.
valence electrons.
lone pair electrons.
unpaired electrons.
The electrons used by atoms to
form chemical bonds are the:
a.
b.
c.
d.
core electrons.
valence electrons.
lone pair electrons.
unpaired electrons.
“Atoms tend to gain, lose, or
share electrons until they are
surrounded by eight valence
electrons” is a statement of:
a.
b.
c.
d.
the rule of octaves.
the double quartet rule.
the eight electron rule.
the octet rule.
“Atoms tend to gain, lose, or
share electrons until they are
surrounded by eight valence
electrons” is a statement of:
a.
b.
c.
d.
the rule of octaves.
the double quartet rule.
the eight electron rule.
the octet rule.
When a transition metal atom
becomes a +1 ion, the electron
lost usually comes from what
type of orbital?
a.
b.
c.
d.
p
f
d
s
When a transition metal atom
becomes a +1 ion, the electron
lost usually comes from what
type of orbital?
a.
b.
c.
d.
p
f
d
s
A molecule of CS2 contains:
a. two single bonds.
b. two double bonds.
c. one single bond and one double
bond.
d. one single bond and one triple bond.
A molecule of CS2 contains:
a. two single bonds.
b. two double bonds.
c. one single bond and one double
bond.
d. one single bond and one triple bond.
What is the formal charge on the
nitrogen atom in the nitrate ion
(NO3–1) ?
a.
b.
c.
d.
+2
+1
0
–1
What is the formal charge on the
nitrogen atom in the nitrate ion
(NO3–1) ?
a.
b.
c.
d.
+2
+1
0
–1
–1.
The formate ion is HCO2
The
charges on the oxygen atoms in
the formate ion are best
described as:
a.
b.
c.
d.
–1 on both atoms.
0 on both atoms.
–1 on one atom, 0 on the other atom.
–1/2 on both atoms.
–1.
The formate ion is HCO2
The
charges on the oxygen atoms in
the formate ion are best
described as:
a.
b.
c.
d.
–1 on both atoms.
0 on both atoms.
–1 on one atom, 0 on the other atom.
–1/2 on both atoms.
Which compound below
contains an atom that is
surrounded by more than an
octet of electrons?
a.
b.
c.
d.
PF5
CH4
NBr3
OF2
Which compound below
contains an atom that is
surrounded by more than an
octet of electrons?
a.
b.
c.
d.
PF5
CH4
NBr3
OF2
Which choice below correctly
lists the elements in order of
increasing electronegativity?
a.
b.
c.
d.
C<N<O<F
N<C<O<F
N<C<F<O
C<N<F<O
Which choice below correctly
lists the elements in order of
increasing electronegativity?
a.
b.
c.
d.
C<N<O<F
N<C<O<F
N<C<F<O
C<N<F<O
As the number of bonds
between two atoms increases,
the distance between the atoms:
a.
b.
c.
d.
increases.
decreases.
remains unchanged.
varies with the atoms involved.
As the number of bonds
between two atoms increases,
the distance between the atoms:
a.
b.
c.
d.
increases.
decreases.
remains unchanged.
varies with the atoms involved.